Use rivet washers where you rivet the ABS to the bumper. If not they will pull out.

I used only the two front existing mount points on the subframe, not the additional ones in the rear... and then I used turnbuckles in front instead of the framework in front of the intercooler. This allows the splitter to pivot upwards and just bend the ABS when it bottoms out... it has saved the whole assembly many times.

I also used two more turnbuckles, one in front of each tire to support the corners of the splitter.

Ohh, and keep both the air damn and the splitter as close to the wheels as possible without rubbing at full droop. The more coverage the better for aero.

Hustler. Even if you don't want a splitter, I'd build an undertray out of some thin plywood. It will support the EP style nose and improve aero.

If you REALLY don't want an undertray, you could just run a couple pieces of angle iron to the bottom front of the ABS to support it. You'd also probably want to run some sort of aluminum support (like a bent flat bar) all the way around the bottom lip of the ABS, because its pretty flimsy

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In the photo it looks like I weigh more than all 3 together pass haha.

Good job whats it made of? Mines just scrap ply with the grain running across the car, the grain is the weakpoint at this stage.

Dann

The splitter template on the car in that picture is just the commonly used birch plywood. I hope you don't weigh that much 480 lbs is 220+ kg I would have put more people on it if I could have. If someone had been walking by my house when I was taking the picture, I wold have recruited them as well, I just ran out of people.